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Questions tagged [state-diagram]

71 questions
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Confusion on the UML state diagram

I have referred quite a lot of materials online, I saw the usage of merge and junction is almost the same? Some sites said to use the diamond shape as a merge, some said to use junction. Can I know which one is correct? The following images are the…
Sam
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What would be the better unit to draw state machine diagrams in SRS?

Recently I am working on a SRS documentation for my university project. When I draw the state machine diagrams I'm confused for what parts should I draw it. Is that for the components? or for the classes? Clearly the inherent state of the object…
randie pathirage
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UML state diagram: What is the difference between a choice and a junction?

In an UML state diagram, branches in the process flow can be modeled using choice elements (represented by a diamond-shaped symbol) with conditions on the outgoing transitions (see example). On the other hand, junction elements (represented by a…
Gerd
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How to show name of choice elements in StarUML?

I'am creating an statechart diagram in StarUML and I want to show the name of choice elements in the diagram, but I don't know how to do it without adding a text annotation. Do you know if it is possible? Thanks!
jmartinalonso
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Is there a standard diagram type with both state and activity?

I understand that a UML activity diagram describes an algorithm, so in a sense it's the modern version of a flow chart, while a UML state chart shows all the possible (or interesting) states an object or system can find itself in, and shows all the…
Tobia
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C# - Coding a nested stateflow diagram

I have the following state diagram. I know how to make a simple state machine that transitions between non-nested states; however, I don't know how to transition between nested states. Could someone explain how to do this at an appropriately high…
weberc2
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"Declarative" composite state with concurrent substates in UML

Given a System that contains two components, A and B, and The System starts up A and B concurrently. Now A can go through states {A.Starting, A.Ready}, and B can be in states {B.Starting, B.DoingX, B.DoingY}. (Events to transition between A's and…
xtofl
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How to display state diagram (FST) in PyCharm?

Below is the code: # import the fst module from nltk.draw import * from nltk.nltk_contrib.fst.fst import * # import the string module import string # Define a list of all vowels for convenience vowels = ['a', 'e', 'i', 'o', 'u'] special = ['?',…
adstrumm_
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How to determine the state in state diagram?

My system has more functions than it is shown inside the diagram but I am trying to do it based on the scenario. My current scenario is that the librarian/admin is trying to delete a book record from the database, normal users can access the…
Chin
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Why can't you generate a use case diagram from a state diagram?

Why can't you, for example, take a state diagram, and make use case diagram based on this state diagram?
Synthy Jericho
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Modelling action use limit in Markov Decision Process

I have a Markov Decision Process with certain number of states and actions. I want to incorporate in my model, an action which can be used only once from any of the states, and when used cannot be used again. How do I model this action in my state…
rohit_r
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State Machine Diagram - Two States for same object

I am diagramming a situation similar to Git, where you can have a single file in multiple states at once (i.e. a file with staged changes and unstaged changes). In this scenario, I have three main states: Unedited file Edited/unstaged file Staged…
modelDBA
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How to prevent orthogonal region transition for error handling

I want to create the following state machine, with Boost MSM: I would like to be able to prevent the Error event to trigger the AllOk + Error == InError transition if the orthogonal state is on "B". For example, specifying transition for all…
Hugal31
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State diagram and Transition table for a Moore machine

I have drawn a mealey machine for this circuit, with two states, however I can't draw a Moore machine state diagram, I don't understand how to do this. The circuit is as follows : The circuit is a Moore machine with one binary input X and one…
Jake Pillandfall
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Handling Failures in State diagram

I have a system with 3 states. I wanted to handle failures. That is, when the system reboots, it doesn't know the state it's in. Is the following state diagram correct?
Hossein
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